Electrically-controlled window raisng and lowering mechanism.



ELECTRICALLY CONTROLLED WlNDOW RASlNG AND LOWERIQG MECHANISM.

APPLICATION FILED IUNE I6. 15H1.

Patented Mar. 26, 1918.

5 SHEETSwSHEET 1.

H. E. NoRvvooD. ELECTRICALLY CONTROLLED WINDOW RAISING AND LOWERING MECHANISNI1 APPLICATION FILED )UNE 16. 191?.

Patented Mau'. 2U, 1915.

LQUAS.

5 SHEETS-SHEET 2.

l H. E. NORWOOD. ELEcImcALL'Y commun wmnow msnm AND LowEmNG MEcHAmsn/f. APPLICATION HLE JUNE I6. 191?. l 269435 Patented Mair. Q6, 1916.

5 SHEETS-SHEET 3.

H. E. Noms/00D.

ELECTRICALLY CONTROLLED WINDOW HAISING AND LDWERING MECHANISN. APPLICATION FILED JUNE l5. 1917.

LQOAQS. .Patented Mar. 26, 1918.

5 SHEETS*SHEET 4.

H. E. NORWOOD.

ELECTRICALLY CONTROLLED WINDOW RAISING AND LOWERING MECHANISM. APPLlcAnon man :uns 1s. |911.

LQGOA. Patented Mm. 26,1918.

5 SHEETS-SHEET 5.

fr raus ATNT FFlQE.

HARRY EMERY NORWOOD, F NEW YORK, N. Y., ASSIGNOR TO PRFECT WINDOW REGULATOR COMPANY, OF NEW YORK, N. Y., A CORPORATION OF MAINE.

Specification of Letters Patent.

Patented Mar. 26, Mieli.

Application led .Tune 16, 1917. Serial No. 175,145.

To all whom it may concern.'

Be it known that l, HARRY EMRRY NOR- l woon, a citizen of the United States, anda resident of New York, in the county of New York and State of New York, have invented cert. in new and useful Improvements in Ele trically-Controlled Window Raising and Lowering Mechanism, of which the following is a specification.

Myinvention relates to apparatus for raising or lowering a window to any desired position and automatically locking it in such position.

The object of my invention is to provide simple and inexpensive means whereby the desired raising and lowering movement and the locking of the window in the desired position at will may be effected by electromagnetism.

A further object of my invention is to provide electrowmagnetic means for this purpose which shall be ot'rsuch small lateral dimensions that the whole operating mechanism for raising and lowering and locking the window may be conveniently located in the panel of a door or an automobile or carriage body.

To these ends my invention consists essentially in the combination with the window of a wheel preferably a sprocket wheel operatively connected with the window by any suitable means such for instance as a belt, like a chain belt, running on said wheel and itself engaging by a suitable pin with a part carried by the wheel, and means for impart-- ing astep by step movement or action to said wheel by electro-magnetic action in either direction at will.

The invention further consists in an im. proved means whereby the window may be locked and unlocked under the controlv of electro-magnets energized and denergized at the same time with the magnets producing the step by step action.

The invention also consists in the details of construction and combinations of devices more particularly hereinafter described and claimed.

Referring to the accompanying drawings:

Figure l is a general elevation of an apparatus embodying my invention and shows the same applied in connection with a glass window plate of a carriage or automobile door.

Fig. 2 is an enlarged elevation showing -`the apparatus.

Fig. 3 is an enlarged elevation of the electro-magnetic actuating means.

Fig. 4 is a general diagram of the circuits of the apparatus.

Fig. 5 is a detailed view of one end of an actuating electro-magnet and shows the circuit eloser and breaker for producing a step by step action.- l

Fig. 6 is a general elevation ot' a modified step by step action operated by eleetro-mag netsand Fig` 7 is a plan of the same.

Fig. 8 is a general diagram of the circuits for an'apparatus such as illustrated in Figs. 6 and 7.

Fig. 9 is an enlarged view of the locking devices electro-magnetically operated or controlled, suitable for use with the apparatus shown in Figs. 6,7 and 8.

l .indicates a wheel such as a sprocket wheel adapted to turn in either direction upon a suitable shaft and 2 is a belt such as a chain belt running over said wheel and over another wheel 3 which takes the lower run of the chain or belt 2. i indicates a stud or pin carried by the belt and whereby said belt is operatively connected with the window or glass plate 5 which is to be raised and lowered in suitable guide-ways in the door or body. The connection between the pin or stud i and the window 5 is shown as effected by means of a plate 6 bolted or secured to the lower part of the window l' and having a longitudinal guide slot in which the pin or stud 4f engages as well understood by those skilled in the art, so that, as the sprocket wheel l is rotated in one direction the window will be raised out of the anel in which the operating parte are located or will be lowered into the same as the wheel is rotated in the opposite direction. v

7 indicates a suitable framework in which the parts of the operating mechanism may be mounted and 8 a plate or plates forming a part oi" said framework or attached thereto and serving vfor the attachment of the magwhich may be closed by any circuit control ling devices or puslrbutton and which, when energized, operates with an automatic step by step action so long as said circuit is closed to turn the wheel 1 in a direction to raise the window; and 10 indicates H similar magnet similarly controlled and acting in a way to ilnpart rotation to the wheel 1 in the re` armature might be used for the same pure.

pose. 13 indicates a spring which encircles the core and is retained between the head of the magnet and the collar 14 secured to said core. Said spring acts on the core in a direction'opposed to the magnetic pull so that, by combining with the magnet an automatic circuit breaker or device for intermittently and automatically energizing and denergizing the magnet, a reciprocating or.to and fro movement may be imparted automatically to the pawl 12 and a step by step action of thewheel 1 may be produced by the use of suitable toothed or ratchet wheels upon which the pawls 12 act.

In the embodiment of my invention illustrated in. Figs. 1 to 5 inclusive, two ratchet wheels 15, 15 lire employed. These ratchet wheels are suitably secured to the wheel 1 or the shaft thereof and have their teeth reversely arranged as shown. The teeth of wheel 15 are properly disposed so that by the to and fro movement of the core of magnet 10 said wheel 15 will be turned step by step by the action of the pawl 12 in a direction to turn the sprocket wheel 1 and raise the window, while the teeth of wheel 15 are reversely disposed so that, under the action of magnet 10 and its core and attached actuating pawl the wheel 1 will be turned in the reverse direction to lower the window. The automatic interrupted action of the magnets may be produced as well understood in the art by breaking the energizing circuit thereof or by any other suitable means. I have however, in the present instance7 shown this action as being brought about by the shunting action of a circuit closer and breaker as this is preferable under the conditions of use of my device to an interruption of the circuit of the magnet coils.

The elements of thc shunting circuit closer and breaker may comprise, as shown. a pair of springs 16 mounted on the head of the electro-magnet andl adapted to be brought into contact with one another to shunt the coils when the core is drawn into the coil in a direction to actuate the pawl 'l2 and wheel upon which the pawl bears. The

closure of said springs can readily be effected by a screw or pin 17 mounted on the flange or collar 11 secured vto the end of the COI'G- 19 indicates al retaining pawl or locking dog engaging wheel 15 and 19 a similar pawl or locking dogengaging wheel 15.' These pawls are normally maintained in cngag'ement-with said wheels by the action of a suitable spring or springs 2O (Fig. 2) and are electi'o-magnetically controlled by means of electro-magnets 21, 21 acting on armatures 22 and 22 attached to the pawls or pawl arms. By a current applied to electromagnet 21 at the time when the magnet 10 is called into action to produce a step by step rotation of wheel 1 in a direction to raise the window, the armature 22 is drawn up and the pawl 19 which interlocks with.

the teeth, of wheel 15 is removed from locking position, thus leaving the sprocket wheel and shaft free to rotate step by step under the action of magnet 10- and its actuating gpawl. In this operation the retainingpawl or dog 19 serves to hold the wheel 15 against reverse movement. So long therefore as the circuit is closed through magnet 10 and magnet 21 the wheel 15 is actuated rapidly step by step in an automatic manner and the win dow is gradually raised, being retained at each small step of upward movement by the pawl 19. When the circuit is interrupted through magnet 10 and magnet 21, the reciprocating motion of the actuating pawl ceases and the pawl 19 drops back into place and no further movement in an upward direction is possible since the parts are locked against such movement by the pawl or dog 19', while reverse or downward movement is prevented by the pawl or dog 19. The windowis therefore retained in the desired lifted position so long as the magnets remain out of action.

To lower the window the circuit of magnet 10 is closed by the push-button or circuit controller, as will be presently de-v scribed, and the. magnet 21 is energized, so that the armature 22 will be drawn up and the pawl or locking dog 19 will be withdrawn from engagement with wheel 15, thus permitting reverse rotation of the wheel 1 to be effected by a step by step electro-magnetic action of the magnet 10 in a direction to lower the window.

One of the arrangements of circuit coir trollers which may be employed for citeetually controlling the action of the magnets 10, 10 and 21, 21 in thc manner above dcscribed is indicated diagrannnatically in Fig. L1. In this instance the circuit controller or push-button that may be used'for raising the window at will is indicated at 23 and that for lowering indicated at 23". Any source of suitable electric energy for ener-v gizing the n'iagnets is indicated atI 24. As

made to flow through the coils of magnet 10 y and the core thereof is energized so as to actuate the pawl 12 to partially rotate vthe wheel v15. As the core is drawn into the coil thecontacts of spring 16 are engaged ncl/the current is thereby shunted from the magnet 10, so that by the action of the retractor 13 the core is moved `in the opposite direction and the pawl 12 brought to position to engage afresh tooth or teeth of the wheel.l .W hen the pressure on the button 23 ceases and the circuit of the magnet is there` by broken by said push-button, the lifting movement of the mechanism.ceases owing to the withdrawal of current from" the magnet 10. So long as the push-button remains depressed, however, the pawl 12 will be reciprocated automatically and the window will rise rapidly by a series of minute step by step movements. The closure by button 23 also closes the circuit from the source of energy through the magnet 21 operating on armature 22 and pawl or locking dog 19 producing the unlockingaction already set forth and the wheel therefore remains unlocked by the dog 19 so long as the button 23 is depressed and while the step by step action is taking place. The interruption of 'the circuit of magnet 10 by the push-button is also accompanied by interruption of the circuit of the electro-magnet 21, so that the locking dog or pawl 19 will resume normal position and the mechanism will be e'ec-- tually locked against movement in either direction. By examination of the circuits it will be seen that the closure of the circuit by the button 23 causes current to circulate in the coils of'21 from the source 24, thereby acting upon the armature for the other locking dog or pawl as already set forth. The button or circuit closer 23 also operates to close circuit of the actuating electro-magnet 10 and a reciprocating; or step by step action through the power of said magnet applied to the wheel 15 to lower the window takes place in obvious manner.

As already stated, the step by step action by the power of electro-magnets may be produced by the use of magnets having fixed cores and movablearmatures. A form of apparatus embodying such a modification is illustrated in Figs. G, 7, 8 and 9. ln this instance I show a pair of magnets for the up movement and asimilar pair for the down movement, the magnets of each pair being combined` with suitable automatic circuit closers whereby 4they are thrown into andA out of action in alternation to produce,vby

positive electro-magnetic force, and without the use of a retractor, suitable vibratory movement of a lever' 25 pivoted, as shown, and carrying at opposite sides of its fulcrum respectively the impulse pawls or pallets of a pair of pallets acting on toothed wheel 26. The construction of toothed wheel and impulse pawls is preferably like that of a vibrating escapen'lent so that lthc pawls attachedto one lever will not lock the wheel against rotation by the impulses of the other lever but the teeth of the wheel will pass the impulse teeth freely, the lever at such time vibrating freely. The locking means for the Wheel 2G secured as before to the sprocket wheel may consist, as in the case of the apparatus shown in Figs. 1 to 5, of a pair of ratchet wheels 15, 15 mounted on the same shaft as wheel 26. Ratchet dogs or pawls 19, 19 may coperate with wheels 15, 15 and wheel' 26 to lock the latter against Inovement in either direction and in the manner already described in connection with the apparatus shown in Figsf 1 to The reciprocating vibratory motion so long as the circuit is closed by the circuit controller or push-button 23 or 23 may be produced in the same manner as already described by contacts 16 adapted to be pressed into contact with one another by the insulating button 30 carried by the lever 25.

When push-button 23 is, depressed the con nection is closed to the pair of magnets 10. As will be seen, by following the circuits, and with the lever 25 for magnets 1() in the position shown, the circuit is complete through the lrwcr pair of contacts 16 for the upper magnet 10 which, being thereby energized, operates the lever 25, thereby interrupts its own circuit and by closing the circuit through the upper pair of contacts 16 completes the connection through the lower magnet 10. The latter being in turn energized, draws the armature lever back to position shown and interrupts its own circuit and the action is automatically repeated with a consequent vibratory action of thelever so long as the button 23 is depressed.. A similar action takes place in the pair of magnets 10 when and so long as the button 23 is depressed.

`With the parts in position shown it is obvious that the closure of circuit for the mag` nets 10 by button 23 will produce first, an energization of lower magnet 10 through the closing of spring 16 at the top and that the rst movement of the armature lever a step by step movement of the wheel 26 inA the opposite or down direction will ensue and be continued so long as the button 23 llSO is held depressed. In these operations it will be readily understood that owing to.

closure of the circuit of their magnets respectively by the depression of the pushbutton will take place in obvious manner and as will be seen by following the circuits closed for said magnets 21, 21 on the suplemental contacts 35 of said push-buttons.

As will be obvious to those skilled in the art, the desired reciprocating action of an impulse pawl or pawls might be secured without retractors by the use of other arrangements of electro-magnets and armature or armatures suitably connected to an impulse pawl or pawls without departing from my invention.

What I claim as my invention is:

1. In an apparatus for raising and lowering windows, the combination with a wheel adapted to turn in either direction and operatively connected with the window to raise or lower the same, a magnet for actuating the wheel step by step in one direction to raise the window and provided with means for producing an automatic interrupted action of the magnetism as described, a magnet and means for producing automatic interrupted action thereof for producing movement of the wheel in the opposite direction and means for closing the connection between one or the other magnet at will and a suitable source of energy to raise or lower the window by a step by step action.`

2. In an apparatus for raising and lowering windows, the combination with the window of a wheel operatively connected therewith, a magnetically actuated device operating automatically with interrupted magnetic action to move the wheel in one direction to raise the window, similar means acting on said wheel to move it in the opposite direction to lower the window and cirlcuit controlling devices for connecting and disconnecting at will one or the other of said magnetic means withfga suitable source of energy for the raising or lowering operation.

3. in an apparatus for raising and lower-- ing windows, the combination with the window of. a wheel operatively connected therewith, a magnetically actuated device operating automatically with interrupted magnetic action to move the wheel in one direction to raise the window, similar means actdirections,

trolling devices for connecting and disconnecting at will one or the other of said magnetic means with a suitable source of energy for the raising or lowering operation, locking devices for holdin@- the window against movement in either direction and electromagnetic means controlling said locking devices, said electro-magnetic means being continuously energized and independently of the interrupted magnetic action by which the window is raised or lowered so long as the lowering or lifting movement is continued. t

l. In an apparatus for raising and lowering windows, the combination of a sprocket wheel, a window operatively connected with the sprocket wheel by a belt or chain and a pin or stud carried by the chain and engaging the window or part carried thereby electro-magnetic actuating means for turning said sprocket wheel step by step in netic actuating means producing motion in the opposite direction.

5. In an apparatus for raising and lowering windows, the combination with a wheel operatively connected/'with the window, of electro-magnetic means for propelling said wheel in either direction step by step at will, two locking dogs acting respectively to lock the wheel against rotation in opposite electro-magnetic means, and means for controlling the same at will to throw one or the other of said locking dogs out of action according to the direction of movement of said wheel desired for raising or lowering the window.

6. In an apparatus for raising and lowering windows, the combination ofb two ratchet wheels having their teeth reversely arranged, a magnetic step by step actuating means for each wheel, a retaining pawl for each wheel and electro-magnetic means for moving either pawl at will from operative relation to its wheel.

7. In an apparatus for raising and lowering windows, the combination substantially as described of a pair of actuating wheels mounted to revolve together and having their teeth reversely arranged as described, an actuating pawl for each wheel, electromagnetic means for reciprocating each pawl and comprisingan electro-magnet provided with means Jfor automatically interrupting 8. In anapparatus for raising and lower-p ing Windows, the combination substantially as described of a pair of ratchet wheels having teeth reversed, 'an electro-magnetic re,- ciprcating actuating device'for each wheel, a retainingilpawl for each wheel and electro-maggie` lfrro `one or the-other ,out` of ac- 9. yInv ,apparatus of the character de- \s`cribed, the combination of a sprocket wheel, a\.chain,f`a window connected tothe chai-n,

twttoothed Wheels connected. with the sprocketfwheel an actuating pawl vfor eah toothed"\\ heel and an operating magnet for each pawllprovided with an automaticv ciry cuit closeriiand breaker for producing a reciprocatinglmotion of the pawl at will for imparting a stepby step movement to either wheel to raisev on lower the window'as required. y

10. In an appara-tus for raising and lowrino windows, the combination with a pair of ratchet wheels having reversely arranged kperating on said pawls respec teeth and 'mounted to revolve together, a re- 35 ciprocatoryactuating pawl for each wheel, an actuating magnet operating intermittently to reciprocate the pawl, a retaining pawl for each wheel and electro-magnets acting on said .retaining pawls to throw 40 one or the other outofaction at will.,`

11. In an apparatus foi-raising andV lowering windows, the combination of a toothed wheel operatively connected with the window .to raise and lower the same, electro- I magnetic impul e devices operating on said wheel to move k.the wheel in one direction step by step to raise the window so long as the connection for said devices with 4a suitable generator isv maintained, similar devices for rotating-said wheel step byA step in the opposite direction under similar con-l trol in orderto lower the window, two locking devices adapted respectively to hold said wheel against reverse movement in the operations of raising and lowering the window respectively and means for automatically throwing said locking devices respectively Aout of action during the raising or lowering ,movement 6G Signed at New York, in the,A county of New York and State of New York, this 15th day of June, A. D. 1917.

HARRY EMERY NoRwoon. 

